This is a 1.8" Solid State Drive for the MacBook Air 2008/2009 model. This drive is compatible with the MacBook Air (Model ID: MacBookAir2,1) (not compatible with the Model ID: MacBookAir1,1 , January 2008 edition)When only the fastest and most reliable Solid State Drive on the market today will suffice for your data storage and backup, look no further than the OWC Mercury Aura Pro SSD.Go FASTER with data rates up to 275MB/sGo BIGGER up to 16X more capacity than original factory hard drive option.*Go ROUGHER NO Moving Parts for reliability up to 100X higher than hard drives.The Mercury Aura SSD line features industry leading SandForce® DuraClass Technologies: DuraWrite™ extends the endurance of your Solid State Drive (SSD). Intelligent Block Management & Wear Leveling automatically... Less

This is a 500GB 9.5mm 7200RPM MacBook hard drive. Specs: 9.5 mm high drive for maximum capacity slimline portable applications, Storage Capacity: 500GB. Interface: Serial ATA ( SATA) . Buffer size: 8MB. Form Factor: 2.5-inch x 9.5mm.

This is a 320GB 9.5mm 5400RPM MacBook hard drive. Brand may vary between Western Digital and Seagate depending on market availability. Specifications: 9.5 mm high drive for maximum capacity slimline portable applications, Storage Capacity: 320GB. Interface: Serial ATA ( SATA) . Buffer size: 8MB. Form Factor: 2.5-inch x 9.5mm.

Add a Second Hard Drive to your Macbook or Macbook Pro UnibodyDouble the storage capacity of your Apple Laptop with a Dual Drive!The DualDrive replaces your internal optical drive with a hard drive of your choice (Only 2.5" SATA drives will work in the Dual Drive). As a result, you will no longer have a CD drive in your unit. You can still have an external cd drive by purchasing an external drive such as our External Superdrive DVD/CD Burner and Reader If you're the type of person who doesn't use your optical drive much, but needs extra storage capacity on the go, then the Dual Drive is what you need.To see an installation guide and demo, click here. How to Max out your storageModelInter nal Max CapacityDualDrive Max CapacityMaximum CapacityMacbook Pro 17 Inch Unibody750GB500GB... Less